1			2	3
5		3
			5
		5
			6		4
	5	4			6

Difficulty: Super easy (0)

		6		2
				6	1
	5
				3
3	1
	4		5

Difficulty: Super easy (0)

					2
		3		1
2	6
				4	5
	1		6
3

Difficulty: Very easy (0)

1			3
	4
		6	5
		5	2
				6
		3			4

Difficulty: Very easy (0)